- A
Add read replicas to offload read traffic.
Why wrong: Does not improve write throughput.
- B
Increase the size of the EBS volumes to improve baseline throughput.
Larger gp2/gp3 volumes have higher throughput.
- C
Use Multi-AZ for the database.
Why wrong: HA feature, not performance.
- D
Move the data to instance store volumes.
Why wrong: Ephemeral, data loss risk.
Question 1,444 of 1,733
PAS-C01 Technology Practice Question
This PAS-C01 practice question tests your understanding of technology. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An SAP system on AWS is experiencing slow performance for batch jobs. The jobs are I/O intensive and write large amounts of data to EBS volumes. CloudWatch metrics show that the EBS volumes are reaching their throughput limits. Which action will MOST effectively improve performance?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the size of the EBS volumes to improve baseline throughput.
Increasing the size of EBS volumes directly improves their baseline throughput performance because EBS throughput scales with volume size. For gp2 volumes, baseline throughput is 128 MiB/s for volumes up to 170 GiB, then increases by 0.5 MiB/s per GiB beyond that; for gp3, baseline throughput is 125 MiB/s regardless of size, but you can provision additional throughput. Since the batch jobs are I/O-intensive and hitting throughput limits, larger volumes provide higher throughput without requiring architectural changes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Add read replicas to offload read traffic.
Why it's wrong here
Does not improve write throughput.
- ✓
Increase the size of the EBS volumes to improve baseline throughput.
Why this is correct
Larger gp2/gp3 volumes have higher throughput.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use Multi-AZ for the database.
Why it's wrong here
HA feature, not performance.
- ✗
Move the data to instance store volumes.
Why it's wrong here
Ephemeral, data loss risk.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse throughput limits with IOPS limits or assume that adding read replicas (Option A) or Multi-AZ (Option C) can improve write performance, when in fact they only address read scaling or availability, not the underlying EBS throughput bottleneck.
Detailed technical explanation
How to think about this question
EBS volume throughput is determined by volume type and size: for gp2, baseline throughput is 128 MiB/s up to 170 GiB, then 0.5 MiB/s per GiB; for gp3, baseline throughput is 125 MiB/s with a baseline of 3000 IOPS, and you can provision up to 1000 MiB/s throughput independently. In real-world SAP batch jobs, hitting throughput limits causes I/O queue buildup and increased latency, so increasing volume size (or provisioning more throughput for gp3) directly alleviates the bottleneck without requiring application changes.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
Technology — This question tests Technology — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Increase the size of the EBS volumes to improve baseline throughput. — Increasing the size of EBS volumes directly improves their baseline throughput performance because EBS throughput scales with volume size. For gp2 volumes, baseline throughput is 128 MiB/s for volumes up to 170 GiB, then increases by 0.5 MiB/s per GiB beyond that; for gp3, baseline throughput is 125 MiB/s regardless of size, but you can provision additional throughput. Since the batch jobs are I/O-intensive and hitting throughput limits, larger volumes provide higher throughput without requiring architectural changes.
What should I do if I get this PAS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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